What to do if Fronius TransTig 4000 tS3 error occurs?
- JJamie BatesSep 12, 2025
If the Fronius Welding System displays a tS3 error, it indicates overtemperature in the power source's secondary circuit. Allow the power source to cool down.

What to do if Fronius TransTig 4000 tS3 error occurs?
If the Fronius Welding System displays a tS3 error, it indicates overtemperature in the power source's secondary circuit. Allow the power source to cool down.
What to do if Fronius TransTig 4000 tSt error occurs?
If the Fronius Welding System displays a tSt error, it indicates overtemperature in the power source control circuit. Allow the power source to cool down.
| Input Voltage | 3 x 400 V |
|---|---|
| Output Current Range (MMA) | 10 - 400 A |
| Protection Class | IP 23 |
| Mains Frequency | 50/60 Hz |
| Rated Input Frequency | 50/60 Hz |
| Cooling | Air-cooled |
| Efficiency | 85% |
| Output Current Range (TIG) | 5 A - 400 A |
Explains the meaning of hazard symbols used in the manual, such as DANGER, WARNING, and CAUTION.
Provides general safety guidelines, responsibilities, and qualifications for device operators.
Covers mains connection requirements and personal protection measures during operation, including clothing and ear protection.
Details risks from flying sparks, electrical shock, noise pollution, and toxic gases during welding operations.
Emphasizes safe handling of pressurized gas cylinders and precautions for device installation and transport.
Outlines safety measures for regular operation and essential safety precautions for maintenance procedures.
Provides an overview of control panels for MagicWave and TransTig, detailing their logical arrangement and elements.
Covers safety checks, intended use, and setup regulations before device installation.
Guides through start-up, cooling unit use, and safe connection of the gas cylinder.
Details establishing ground connections to the workpiece and connecting the welding torch.
Explains TIG modes, their symbols, and key welding parameters like GPr, IS, I1, and downslope.
Describes the operation sequences for the 2-step and 4-step TIG welding modes.












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